feat: add explicit camera clear modes

engine/src/Components/CameraComponent.cpp

@@ -33,6 +33,7 @@ void CameraComponent::Serialize(std::ostream& os) const {
     os << "far=" << m_farClipPlane << ";";
     os << "depth=" << m_depth << ";";
     os << "primary=" << (m_primary ? 1 : 0) << ";";
+    os << "clearMode=" << static_cast<int>(m_clearMode) << ";";
     os << "clearColor=" << m_clearColor.r << "," << m_clearColor.g << "," << m_clearColor.b << "," << m_clearColor.a << ";";
 }
 
@@ -65,6 +66,8 @@ void CameraComponent::Deserialize(std::istream& is) {
             m_depth = std::stof(value);
         } else if (key == "primary") {
             m_primary = (std::stoi(value) != 0);
+        } else if (key == "clearMode") {
+            m_clearMode = static_cast<CameraClearMode>(std::stoi(value));
         } else if (key == "clearColor") {
             std::replace(value.begin(), value.end(), ',', ' ');
             std::istringstream ss(value);